Free Crm For Small Business Manufacturers – Certified Reference Material – Shandong Institute of Metallurgical Science
Free Crm For Small Business Manufacturers – Certified Reference Material – Shandong Institute of Metallurgical Science Detail:
Table 1. Certified Values for ZBK 306 (Mass Fraction %)
|
Number |
Elements |
TFe |
FeO |
SiO2 |
Al2O3 |
CaO |
MgO |
|
ZBK 306 |
Certified Values |
65.66 |
0.54 |
1.92 |
1.64 |
0.056 |
0.102 |
|
Uncertainty |
0.17 |
0.06 |
0.04 |
0.04 |
0.006 |
0.008 |
|
|
Number |
Elements |
S |
P |
Mn |
Ti |
K2O |
Na2O |
|
ZBK 306 |
Certified Values |
0.022 |
0.060 |
0.135 |
0.048 |
0.018 |
0.007 |
|
Uncertainty |
0.001 |
0.002 |
0.003 |
0.002 |
0.002 |
0.002 |
Table 2. Analysis methods
|
Composition |
Method |
|
TFe |
Titanium(III) chloride reduction potassium dichromate titration method |
|
FeO |
Potassium dichromate titration methodThe potentiometric titrimetric method |
|
SiO2 |
Perchloric acid dehydration gravimetric methodThe silicomolybdic blue spectrophotometric methodICP-AES |
|
Al2O3 |
Complexometric titration methodThe chrome azurol S photometric methodICP-AES |
|
CaO |
ICP-AESAAS |
|
MgO |
ICP-AESAAS |
|
S |
Barium sulfate gravimetric methodThe eombustion iodometric method for the determination of sulfur content |
|
P |
Bismuth phosphomolybdate blue spectrophotometric methodICP-AES |
|
Mn |
Potassium periodate spectrophotometric methodICP-AESAAS |
|
Ti |
Diantipyryl methane photometric methodICP-AES |
|
K2O |
ICP-AES AAS |
|
Na2O |
ICP-AES AAS |
Expiration of certification: The certification of this CRM is valid until December 1, 2028.
Table 3. Methods for homogeneity testing
|
Composition |
Analysis methods |
Minimum sample (g) |
|
TFe |
Titanium(III) chloride reduction potassium dichromate titration method |
0.2 |
|
FeO |
Potassium dichromate titration method |
0.2 |
|
SiO2, Al2O3, CaO, MgO |
ICP-AES |
0.1 |
|
Mn, Ti |
ICP-AES |
0.2 |
|
P, K2O, Na2O |
ICP-AES |
0.5 |
|
S |
The eombustion iodometric method for the determination of sulfur content |
0.5 |
The certified reference material is packed in glass bottles with plastic covers. The net weight is 70 g each. It is suggested to keep dryness when stored. The certified reference material should be dried at 105℃ for 1 hour before use, then it should be taken out and cooled to room temperature.
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Persisting in "High quality, Prompt Delivery, Competitive Price", we have established long-term cooperation with clients from both overseas and domestically and get new and old clients' high comments for Free Crm For Small Business Manufacturers – Certified Reference Material – Shandong Institute of Metallurgical Science , The product will supply to all over the world, such as: Jamaica, India, Libya, We are sincerely looking forward to cooperate with customers all over the world. We believe we can satisfy you with our high-quality products and perfect service . We also warmly welcome customers to visit our company and purchase our products.
By Princess from Las Vegas - 2017.12.19 11:10
This supplier's raw material quality is stable and reliable, has always been in accordance with the requirements of our company to provide the goods that quality meet our requirements.
By Polly from Sierra Leone - 2017.11.20 15:58
